Wikipedia:Articles for deletion/Transformer effect

The following discussion is an archived debate of the proposed deletion of the article below. Please do not modify it. Subsequent comments should be made on the appropriate discussion page (such as the article's talk page or in a deletion review). No further edits should be made to this page.

The result was redirect‎ to Inductance#Mutual inductance or any other target. The consensus is fairly clear that the article should Not Be Here any more: I am going to make an editorial decision to pick one of the proposed targets; if anyone prefers one of the other ones, like Faraday's law of induction, Electromagnetic induction, or just transformer (or sections thereof like § Transformer emf or Electromagnetic induction § Electrical transformer) or even something not mentioned here, please feel free to address it through standard editorial processes (e.g., BRD, etc) or list it at RfD. I am declaring the exact target of redirects Not AfD's Problem, since there are other venues for that and there's not much discussing of it going on here any more anyway. (non-admin closure) Alpha3031 (t • c) 10:56, 13 July 2025 (UTC)[reply]

Transformer effect

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Transformer effect (edit | talk | history | protect | delete | links | watch | logs | views) – (View log | edits since nomination)

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Mutual inductance and Inductive coupling already have much more information here. The transformer effect certainly is not the WP:COMMONNAME for this, either. DeemDeem52 (talk) 16:12, 20 June 2025 (UTC)[reply]

• Note: This discussion has been included in the deletion sorting lists for the following topics: Science, Engineering, and Technology. DeemDeem52 (talk) 16:12, 20 June 2025 (UTC)[reply]
• Note: This discussion has been included in the deletion sorting lists for the following topics: Physics, Ldm1954 (talk) 00:45, 2 July 2025 (UTC)[reply]
• Not delete - what are you suggesting should happen? Christian75 (talk) 12:23, 21 June 2025 (UTC)[reply]
• I agree with the nom that the term is rarely used. It refers to the effect in which an emf is induced by a time-varying magnetic field. (see [1] and [2]). It is usually discussed in electrodynamics textbooks under the topic Faraday's law of induction. Given this, I propose that we merge to Faraday's law of induction, and create a redirect from the more common term, transformer emf, to that page. The coverage at the target article should also be expanded. Jähmefyysikko (talk) 17:36, 21 June 2025 (UTC)[reply]

  I've added discussion about transformer emf to Faraday's law of induction. Jähmefyysikko (talk) 16:36, 23 June 2025 (UTC)[reply]

• Merge as suggested. Bearian (talk) 09:23, 23 June 2025 (UTC)[reply]
• Redirect to Transformer. There is nothing useful in this article to merge, it is high-school physics without sources. The name is not in common use, and I suspect is a literal translation from another language. It seems to have been created much earlier in WP history when the policy about what to include and verification was more open. I would also be OK with a simple delete, as a Google search mainly brings up pages on Transformer-syle robots. Ldm1954 (talk) 09:08, 24 June 2025 (UTC)[reply]
• Redirect to Transformer, as there is not any brilliant prose or even cited content worth preserving via merge. Stepwise Continuous Dysfunction (talk) 17:31, 24 June 2025 (UTC)[reply]
• Comment Technically, transformer seems like a wrong target. In those sources that care to define "transformer effect", e.g. this, it includes any effect from changing magnetic flux to a stationary circuit, similar to transformer emf. In particular, it includes the interaction between a circuit and a moving magnet, which is unrelated to what happens in a transformer. That's why I suggested Faraday's law of induction above. If we decide that it generally does not have a well-defined meaning, then we should delete it or link to Electromagnetic induction, which is the broadest article in the topic area. Jähmefyysikko (talk) 18:05, 24 June 2025 (UTC)[reply]

  I would be fine with either of those as redirect destinations. Stepwise Continuous Dysfunction (talk) 23:31, 24 June 2025 (UTC)[reply]

• Redirect to Inductance#Mutual inductance, where Mutual induction also redirects. In 2006 the first sentence of the first version of this article read The Transformer Effect, or Mutual Induction, describes one of the processes by which an electromotive force (e.m.f.) is induced. So it was meant as an article on what we usually refer to as mutual induction. StarryGrandma (talk) 00:45, 26 June 2025 (UTC)[reply]

Relisted to generate a more thorough discussion and clearer consensus.
Please add new comments below this notice. Thanks, Destinyokhiria 💬 12:53, 28 June 2025 (UTC)[reply]

Relisted to generate a more thorough discussion and clearer consensus.
Please add new comments below this notice. Thanks, Doczilla _{Ohhhhhh, no!} 06:35, 6 July 2025 (UTC)[reply]

• Comment on Mutual inductance: The original intent of the author of the WP article does not matter, especially when the assertion that "transformer effect" is synonymous with mutual induction is unsourced. It is more important how the term is used in the literature. L.V. Kite (1974) An introduction to linear electric circuits discusses mutual inductance and says The phenomenon we have discussed here is the is the transformer effect. It occurs in circuits which are fixed in position, and should not be confused with the related phenomenon known as the dynamo effect, which depends for its existence on relative motion. This does not yet tell us whether he considers transformer effect synonymous with mutual inductance or whether it is more general phenomenon. However, he also says later that self induction [...] is obviously an additional manifestation of transformer effect. Here's another source that considers self-inductance in connection with the transformer effect: [3]. This indicates that Mutual inductance is a narrower concept than the transformer effect. Anyway, this is such a niche term that I am not strongly opposed to Mutual inductance as a target if it helps closing the AfD, since mutual inductance does lead the reader to the general topic area. Jähmefyysikko (talk) 07:47, 6 July 2025 (UTC)[reply]

The above discussion is preserved as an archive of the debate. Please do not modify it. Subsequent comments should be made on the appropriate discussion page (such as the article's talk page or in a deletion review). No further edits should be made to this page.